Narm and Tan's place was great for us. The apartment is conveniently located in Silom. It is clean, quite new and secure. We felt safe. The 7/11 downstairs is very conenvenient. Narm was very helpful when I wanted a dvd player and even helped oragnise a parcel to be delivered for me (as Im not Thai it could have been difficult otherwise).
To get around the best way in Bangkok is via the airconditioned and clean MRT or BTS especially with traffic at peak hours. The best way to access it is at Sala Daeng BTS and a good TukTuk can always be caught for 50baht from Silom Soi 20 a 1 min walk or 200m from the apartment.
All in all a good place to stay, and conveniently located.